Why am I loosing material

[glad perch]

I've been getting negative material rewards.

[leaden hawk]

Its when you put something to craft on blacksmith I think.

[gaunt quail]

nah, it's just a bug, I've lost materials that I hadn't used in crafting. Anyways, @glad perch probably better in bug report, and send in a support ticket, I've sent in one myself.